Protozoa

The division of living beings into systematics is a continuous subject of research. Different systematic classifications exist side by side and one after the other. The taxon treated here has become obsolete due to new research or is not part of the group systematics presented in the German-language Wikipedia.

Protozoa are living beings that colonize fresh water, salt water and the soil in a large variety of species. The picture shows a shell amoeba of the genus Euglypha . The cell nucleus can be seen very well slightly to the left of the center of the image.

Protozoa (singular protozoan ; Greek πρωτόζωον protozoan , the first animal 'of πρῶτος Protos , first' and ζώον Zoon , living beings, animals'), protozoa , protozoa or protozoa are outdated designations due to their mostly heterotrophic life and their mobility as animal viewed eukaryotic Unicellular organisms . Karl G. Grell defined them as eukaryotes (with one or more cell nuclei) that live as single cells or form colonial associations .

Differentiation between protozoa and protists

First you put the protozoa along with other nucleated protozoa in its own realm of living things , namely the kingdom of Protista (one to wenigzellige eukaryotes). The terms "Protozoa" and "Protista" are just as little systematic taxa as the terms " Algae ", " Amoeba " or " Flagellates ", since the classification was made mainly on the basis of eye-catching features (the so-called habitus ) and not natural ones Relatives about whom nothing was known at the time.

The name Protozoa was introduced to science in 1818 by the German zoologist Georg August Goldfuß . The scientific discipline that deals with the study of protozoa is known as protozoology . Research into protists is known as protistology . Protozoology is a sub-area of protistology and, according to today's understanding, a sub-area of microbiology .

Systematics

The system used in Wikipedia is the system of eukaryotes by Adl et al .

literature

Wilfried Westheide , Reinhard Rieger (Hrsg.): Special zoology. Part 1: Protozoa and invertebrates. 2nd Edition. Spektrum Akademischer Verlag, Heidelberg 2006, ISBN 3-8274-1575-6 .
Karl G. Grell: Protozoology. 2nd Edition. Springer-Verlag, Berlin, Heidelberg, New York 1968.

Web links

Commons : Protozoa - Collection of images, videos, and audio files

Individual evidence

↑ Sina M. Adl et al . (2005): The New Higher Level Classification of Eukaryotes with Emphasis on the Taxonomy of Protists. In: The Journal of Eukaryotic Microbiology. Vol. 52, No. 5, pp. 399-451. PMID 16248873 doi : 10.1111 / j.1550-7408.2005.00053.x

[1] Sina M. Adl et al . (2005): The New Higher Level Classification of Eukaryotes with Emphasis on the Taxonomy of Protists. In: The Journal of Eukaryotic Microbiology. Vol. 52, No. 5, pp. 399-451. PMID 16248873 doi : 10.1111 / j.1550-7408.2005.00053.x